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  • The gills of molluscs are called  Option: 1 CtenidiaOption: 2 Nephridia</di

The gills of molluscs are called
 

Option: 1

Ctenidia


Option: 2

Nephridia


Option: 3

Ommatidia


Option: 4

None of these

 


Answers (1)

best_answer

 

 

 

 

Respiration in Mollusca:

  • The gills called ctenidia present in the mantle cavity serve as breathing organs for aquatic molluscs. 
  • The terrestrial molluscs use the space of mantle cavity for the diffusion of gases. 
  • The under surface of the mantle cavity is provided with blood vessels that take in oxygen and give out carbon dioxide. 
  • Some terrestrial molluscs also have lungs.


 
 

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 Gills of mollusca are also called ctenidia.

Posted by

Ajit Kumar Dubey

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